Check size restrictions before running test vector

Change-Id: I60ea7724e6ab06fc658f678c1b76d984a43f5a5e
diff --git a/vp9/decoder/vp9_decodeframe.c b/vp9/decoder/vp9_decodeframe.c
index fcf480b..0e9b1c5 100644
--- a/vp9/decoder/vp9_decodeframe.c
+++ b/vp9/decoder/vp9_decodeframe.c
@@ -699,7 +699,8 @@
 #if CONFIG_SIZE_LIMIT
   if (width > DECODE_WIDTH_LIMIT || height > DECODE_HEIGHT_LIMIT)
     vpx_internal_error(&cm->error, VPX_CODEC_CORRUPT_FRAME,
-                       "Width and height beyond allowed size.");
+                       "Dimensions of %dx%d beyond allowed size of %dx%d.",
+                       width, height, DECODE_WIDTH_LIMIT, DECODE_HEIGHT_LIMIT);
 #endif
   if (cm->width != width || cm->height != height) {
     const int new_mi_rows =